.slider_container {
  position: relative;
  overflow: hidden;
}
.slider_container ul {
  position: absolute;
  top: 0;
  left: 0;
  margin: 0;
  padding: 0;
}
.slider_container ul li {
  float: left;
}
.slider_container ul li img {
  width: 100%;
  height: 100%;
}
.slider_container .slider-arrows {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 40px;
  transform: translateY(-50%);
}
.slider_container .slider-arrows span {
  display: block;
  width: 30px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  background: #ffffff;
  cursor: pointer;
  -webkit-user-select: none;
}
.slider_container .slider-arrows span:nth-child(1) {
  float: left;
}
.slider_container .slider-arrows span:nth-child(2) {
  float: right;
}
.slider_container .slider_dots {
  position: absolute;
  bottom: 20px;
  left: 0;
  width: 100%;
  text-align: center;
}
.slider_container .slider_dots span {
  display: inline-block;
  width: 20px;
  height: 20px;
  margin: 3px;
  background: #ffffff;
  border-radius: 50%;
  cursor: pointer;
}
.slider_container .slider_dots span.active {
  background: rgba(233, 222, 100, 0.8);
}
.arrow_left {
  position: absolute;
  top: calc(50% - 44px / 2);
  left: 4px;
  width: 44px;
  height: 44px;
}
.arrow_left img {
  width: 100%;
  height: 100%;
}
.arrow_right {
  position: absolute;
  top: calc(50% - 44px / 2);
  right: 4px;
  width: 44px;
  height: 44px;
}
.arrow_right img {
  width: 100%;
  height: 100%;
}
.progressBar {
  position: absolute;
  bottom: 30px;
  left: 80px;
  display: flex;
}
.progressBar .bar {
  position: relative;
  z-index: 0;
  width: 33px;
  height: 2px;
  margin-left: 3px;
  background: rgba(255, 255, 255, 0.4);
}
.progressBar .active div {
  position: absolute;
  top: 0px;
  left: 0;
  z-index: 1;
  width: 0;
  height: 2px;
  background-color: white;
  animation-name: baranimation;
  animation-timing-function: ease;
  animation-iteration-count: infinite;
}
@keyframes baranimation {
  0% {
    width: 0;
  }
  100% {
    width: 100%;
  }
}
